A combination of a glide and a slither - Glither is the term for exiting a social situation without telling anyone. Usually performed with snake-like silence and precision.
Best used if you:
a. Are far too drunk and need to take yourself home b. Are exhausted and don’t want to be a downer on the party with your extended, yawning presence
c. Don’t like your friends
TIP: For an expert-level Glither, explain in detail what glithering is to a group of people at a social gathering and then promptly glither later that evening.